Electronic devices for controlling lights

    公开(公告)号:US11602033B1

    公开(公告)日:2023-03-07

    申请号:US16453083

    申请日:2019-06-26

    摘要: The present disclosure describes a network device that is capable of coordinating the control of light emitters. For example, the network device may receive data indicating conditions for activating the light emitters. The network device may then receive sensor data generated by various sensors, such as motion sensors, light sensors, or a timer. Using the sensor data, the network device may determine that the conditions are satisfied and, in response, cause the light emitters to activate. To activate first light emitters, the network device may transmit a signal to an electronic device that causes the first light emitters to activate. The first light emitters may be powered by the electronic device. Additionally, to activate second light emitters, the network device may transmit signals to the second light emitters that include commands to activate.

    Electrodeless lamp system and methods of operation

    公开(公告)号:US10475636B2

    公开(公告)日:2019-11-12

    申请号:US15719482

    申请日:2017-09-28

    申请人: NXP USA, Inc.

    摘要: An embodiment of a system includes an RF signal source, a first electrode, a second electrode, and a cavity configured to receive an electrodeless bulb. The RF signal source is configured to generate an RF signal. The first electrode is configured to receive the RF signal and to convert the RF signal into electromagnetic energy that is radiated by the first electrode. The cavity is defined by first and second boundaries that are separated by a distance that is less than the wavelength of the RF signal so that the cavity is sub-resonant. The first electrode is physically positioned at the first boundary, and the second electrode is physically positioned at the second boundary. The first electrode, the second electrode, and the cavity form a structure that is configured to capacitively couple the electromagnetic energy into the electrodeless bulb when the electrodeless bulb is positioned within the cavity.

    Light-emitting diode driving module, method of operating thereof, and lighting apparatus including the same

    公开(公告)号:US10383184B2

    公开(公告)日:2019-08-13

    申请号:US16172867

    申请日:2018-10-29

    摘要: A light-emitting diode driving module includes an LED driving circuit to activate light-emitting diodes driven by a modified rectified voltage, and to adjust driving currents conducted to driving nodes to the light emitting diodes; a driving current controller to receive a dimming signal indicative of a degree of modulation of the rectified voltage, and to control currents conducted to the driving nodes depending on the dimming signal; and a current blocking circuit to block the currents of the driving nodes when a dimming level of the dimming signal decreases lower than a first threshold value, and unblock the currents of the driving nodes when the dimming level increases above a second threshold value higher than the first threshold value.

    Constant output current LED driver

    公开(公告)号:US10356861B2

    公开(公告)日:2019-07-16

    申请号:US15478360

    申请日:2017-04-04

    申请人: Alireza Safaee

    发明人: Alireza Safaee

    摘要: A constant output current LED driver is disclosed. The driver is capable of operating with a wide range of input direct current (DC) voltage, and is configured with a full bridge inverter, an auxiliary circuit, and a voltage current converter. The full bridge inverter and auxiliary circuit collectively operate to provide a phase shift controller for the LED driver system. The LED driver operates under zero voltage switching (ZVS) for all switches in the LED driver circuit for all of the input voltage levels and for all of the output voltage levels. By maintaining ZVS in all conditions, the system can operate at very high frequency and be compact yet still achieve high power density. The resulting topology is applicable for a wide range of constant output current LED drivers. Switchable loads other than LEDs can also be driven.

    Methods and systems for controlling an electrical load

    公开(公告)号:US10231319B2

    公开(公告)日:2019-03-12

    申请号:US15969255

    申请日:2018-05-02

    摘要: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.

    Power supply for a two-wire smart switch and lighting loads thereof

    公开(公告)号:US10123393B1

    公开(公告)日:2018-11-06

    申请号:US16002228

    申请日:2018-06-07

    摘要: The present invention refers to an Electrical Power System (EPS) or Power Supply for a smart switch for controlling up to three independent lighting loads (3 gang) within an electrical installation that has two or three wires in the switch box (two-wire and three-wire switches). The smart switch is able to operate in a conventional switch box without access to the neutral wire. If the lighting device is a low power lighting device, only one adapter is used to avoid flickering or unintentional lighting. The Power Supply also provides a voltage signal indicating the current consumed by the lighting loads.

    Systems and methods for extending a lifespan of an excimer lamp

    公开(公告)号:US10091865B1

    公开(公告)日:2018-10-02

    申请号:US15810414

    申请日:2017-11-13

    摘要: System and/or method generally relate to extending a lifespan of an excimer lamp. The system includes a ultra-violet (UV) light having a pair of dielectrics configured to separate electrodes. One of the electrodes includes a metal mesh. The system includes a power supply electrically coupled to the UV light and configured to deliver electrical power to the UV light. The system includes a temperature sensor operably coupled to the UV light. The temperature sensor is configured to generate a temperature signal indicative of a temperature of the UV light. The system includes at least one processor. The at least one processor is configured to determine a temperature of the UV light based on the temperature signal, and adjust the electrical power delivered to the UV light based on the temperature signal.

    Method for providing direct current to wireless dimmer, and apparatus and system therefor

    公开(公告)号:US10064258B2

    公开(公告)日:2018-08-28

    申请号:US15236741

    申请日:2016-08-15

    摘要: A wireless dimming apparatus operatively associated with a driving power apparatus operating with AC power includes a controller, a non-insulting type DC-DC converter for receiving DC power AC-DC converted by the driving power apparatus and converting the DC power into a predetermined operation voltage of the wireless dimming apparatus, a wireless communicator for demodulating an RF signal received through an installed antenna and transmitting the RF signal to the controller, a dimming circuit for receiving a predetermined lighting control signal corresponding to the demodulated RF signal from the controller and transmitting the predetermined lighting control signal to the driving power apparatus, and a DC power switch for supplying the operation voltage to the dimming circuit according to a predetermined control signal of the controller. Accordingly, the wireless dimming apparatus has a small size and high cost efficiency.